omega-minus particle

[oh-mee-guh-mahy-nuh s, -mey-, oh-meg-uh-]
noun Physics.
  1. a baryon with strangeness −3, isotopic spin 0, and negative charge; predicted from the mathematics of the Eightfold Way and subsequently discovered. Symbol: Ω

Origin of omega-minus particle

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018